Flight controllers
worked successfully overnight troubleshooting computer problems on board
the International Space Station and plan to continue a recovery of full
computer operations on the complex today. The station and shuttle crews
awoke this morning to find most of the station's computers operating well
and on line, although efforts are continuing to bring up the orbiting
outpost's backup computers.

The crew today will
assist with bringing the remaining station computers on line, including
swapping a backup payload computer for one of the station's three command
and control computers. Of the three station command and control computers,
one is on line and fully functional, providing full computer operations
aboard the station. The other two, which should serve as backups to the
primary computer, are off-line. Today's activities are planned to bring
them on line as well. The swap of one of those off-line command and control
computers with the backup payload computer will correct what is believed
to be a failed hard drive in that unit. The other off-line command and
control computer has been loaded with new software from the ground that
should correct its operating problems, although flight controllers have
not yet rebooted the unit.

In addition to the
station computer troubleshooting, the station and shuttle crews today
will continue to concentrate on the transfer of supplies and equipment
from the shuttle to the station. They also plan to close the Raffaello
logistics carrier's hatch and later detach that module, using the shuttle's
robotic arm to reberth it in Endeavour's bay for a return to Earth. Almost
4,000 pounds of equipment and supplies were unloaded from Raffaello onto
the station. Yesterday, the crew completed reloading it with items bound
for Earth. The shuttle is planned to boost the station's altitude by about
2.5 statute miles today as well, the second such boost during the mission
thus far.

Managers have added
an extra day to Endeavour's mission and are now planning to have the shuttle
remain docked to the station until Sunday with a landing on Tuesday. A
further extension of the mission also may be considered. The crew of Endeavour
was awakened this morning to the song "Buckaroo," sung by Don
Cain of Dubuque, Iowa, father of STS-100 Ascent and Entry Flight Director
Leroy Cain. Except for the station computer problems now being resolved,
flight controllers have identified no significant problems with any of
the station or shuttle systems. The next mission status report will be
issued later today.

-end-

NASA Johnson Space
Center Mission Status Reports and other information are available automatically
by sending an Internet electronic mail message to majordomo@listserver.jsc.nasa.gov.
In the body of the message (not the subject line) users should type
"subscribe hsfnews" (no quotes). This will add the e-mail
address that sent the subscribe message to the news release distribution
list. The system will reply with a confirmation via e-mail of each subscription.
Once you have subscribed you will receive future news releases via e-mail.